264. Romesh T. Wadhwani
$3 billion self-made score: * source: software age: 70 residence: Palo alto, calif. Ph.d., carnegie mellon ’72 Wadhwani came to America to get a masters at Carnegie Mellon; he stayed and founded private equity firm Symphony Technology Group in 2002. Its portfolio encompasses 19 data, technology and analytics companies that collectively do $2.5 billion in annual revenue. Wadhwani supports entrepreneurship in India through his Wadhwani Foundation.